Rotary pump.



J. R KINNEY.

ROTARY PUMP. APPLICATION FILED D120. 21, 1908. RENEWED NOV. 20, 1911.2.,

Patented July 2, 1912.

2 SHEETS-SHEET 1.

LU3LU7 J. R. KINN BY. ROTARY PUMP. APPLICATION FILED D30. 21, 1908.RENEWED NOV. 20, 1911. o Patented July 2, 1912.

2 SHEETS-SHEET 2.

Jnsrosn. rmnnr, or noncnnsrna; irassaeriusn'r'rs. 1

30mm rum;

warms.

Specification of Letters Patent.

Patented July 2; 1912.

Application filed December 21, 1908, Serial No. 468,658: RenewedNovember 20, 1911. Serial No. 661,422.-

To all whom tt'ma/y concern:

Be it known that I, J USTUS R. KINNEY, a citizen of the United States ofAmerica, and

a resident of Dorchester, in the countylof pivoted blade in contact withthe periphery ofthe piston under any desired" tension.

parts which reference to i The invention consists in certainnovelfeatures of construction and-arrangement of will be readily understoodby the description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a vertical section of a pump.embodying the features of this inventlon, the cutting plane Fig. 2. Fig.2 reprebeing on line 11 on the cutting plane sents a horizontal section,

being on line 22 on Fig. 1, and Fig. 3 rep;

resents a horizontal section, the cutting plane being on line 3-3 onFig. '1. 4

Similar characters designate like artsthroughout the several figures ofthe raw- Tn the drawings, 10 represents the casing of a pump embodying te features of this invention provided with the inlet 11 and the outlet12 while the interior thereof is provided with a chamber 13. In thechamber 13 is mounted an eccentric piston 14, this piston being keyed toa shaft 15 mounted in suitable packed bearings 16 formed upon the endplates 17 secured to the main casing 10 by means of a plurality ofscrews 18.

The casing 10 is provided with the flanges 19 having openings 20 thereinby which the pump may be secured in position. The shaft 15 is providedwith reduced ends 21 having splines or key-ways 22 by which any suitablepulley or gear (not shown) may be secured to the shaft for the purposeof driving the same. Each side wall of the piston 14 is provided with anannular groove 23 m which is mounted a packing ring 24 forced outwardlyagainst the mner face of the end plates 17 by a plurality of springs 25each inserted in a hole in the piston 14. The casing 10 is also providedwith a chamber 26 communicatin with the piston chamber 13. Within an ateach side of effective means for retaining a with" a seat 27 in each ofwhich is adapted to rest an enlarged cylindrical end or trunnion 28 of amember 29, these cylindrical ends or trunnions forming a suitable pivotabout which said member may be moved within the-chamber 26, the oppositeend of said member'being provided with a surface 30 concentric to theaxis of said ends 28. This surface 30 bears against a concentric sunface .formed upon' the inner wall of said chamber 26 and is securelypacked at this point by means of the packing member 31 forced outwardlyinto contact with the surface 30 by means of the spring 32.

The free end of the member 29'is provided with a blade 33 the outer endof which is formed at an angle to the main part thereof sothat thesurface which contacts with the surface of the piston 14 issubstantially tangential to said periphery. Mounte in the casing'lOabove said blade 29 is a chambered bolt 34 threaded to the casing 10 sothat it may beadjusted longitudinally. The inner end of the bolt 34 istubular as at 35 and within the cylindrical chamber of said bolt ismounted a cylindrical chambored plunger 36, the chamber of which c0ntains a spring 37 which is adapted to force said plungeroutwardly intocontact with the member 29-to insure positive contact at all timesbetween the blade 33 and the pethe piston 14. It is obvious that thebolt 34 in either direction the tension 0 the spring 37 may be variedto. suit varying conditions in the operation of the pump. 7

The member 29 is of open construction so that the water or othermaterial being pumped-may pass from the inlet pipe 11 through the blade29 ofthe chamber 13 and be forced by the revolution of the piston 14through the outlet pipe 12, the spring 37 acting u on the member 29- toretain the blade 33 1n contact with the periphery of the piston14'during this operation so as to prevent any leakage at this point. Abetter result is found to be obtained by making the contacting portionof the blade 33 substantially tangential to'the periphery of the piston14, any tendency of the liquid topass by the blade 33 back into theinlet chamber 26 bein overcome by the action of the liquid upon t etangential portion of the blade 33 to retain it in firmer contact.

The provision of the seat 27 in which the riphery of by turning member29. rests without necessitating the same, power bein 'ble shaft of saidlston.

provision of any bearings for the pivots of said member simplifies theconstruction of the pum quite materially and overcomes many ditiicultiesin its operation and any tendency for the liquid to leak throu h thebearing parts where such are provide The construction of the springplunger mechanism for retaining the blade 33 in contact with theperiphery of the piston is such as to make it very effective in 1tsoperation and ada ted for adjustment to vary the tension of 518 springas desired.

It is obvious that thedevice described and shown may be used equally aswell as a motor by admitting a motive agent to the piston chamber andcausing arotation of the taken from the' revolu- It is believed t atfrom the foregoing the operation and manyadvantages of the inventionwill be fully understood without further description.

Having thus described my invention, I claim: v

1. In a device of the class described, the combination of a casinghaving a cylindrical chamber; a revoluble shaft centrally positionedtherein; a cylindrical piston eccentricall mounted on said shaft withone portion 0 its periphery in contact with the wall of said chamber; aninlet chamber one wall of which is provided with a pair of alinedshallow seats; a pivoted blade .within said inlet chamber'andprovided'with two alined cylindrical projections normally resting'insaid seats; an inlet passage through said blade connecting said inletchamber with said piston chamber; a memberthreaded to -v1ded with a.semi-spherical end bearing upon a flat face of said ivoted blade andretaining it in its seat an in contact with said rotar piston. V V y 2;n a device of the class described, the combination of a casing having acylindrical chamber; a revoluble shaft centrally. positioned therein; acylindrical piston eccentri'callv mounted on said shaft with one portionof its periphery in contact with the'wall V of said chamber; an inletchamber one wall of which is provided with a air of alined shallowseats; a pivoted bla e within said inlet chamber and provided with twoalined cylindrical projections normally resting in said seats; an inletassage through said blade connecting said inlet chamber with said pistonchamber; a member threaded to said casing opposite said pivoted bladeand provided with a. cylindrical chamber; a tuular plunger in saidchamber provided I with a semi-spherical end bearing upon a flat face'ofsaid pivoted blade and retaining itin its seat and in-contact withsaidrotary piston; and a spring in said tubular plunger bearing against'theinner end of said chamber. 7

Signed by me at 4 Post Oflice Sq., Boston, Mass, this 14th da ofDecember, 1908.- STUS 'R. KINNEY. Witnesses:

Emu G. 0mm), WALTER E. Lounann.

